Foldable dining chair for children

ABSTRACT

A foldable dining chair for children comprises a frame body ( 1 ) and a seat mechanism disposed thereon. The frame body ( 1 ) may be in an open state and a folded state. The frame body ( 1 ) is folded in back-and-forth direction and up-and-down direction thereof when it is in the folded state. The frame body ( 1 ) comprises a backrest frame ( 2 ), an armrest frame ( 3 ) of which the rear end is rotatably connected to the backrest frame ( 2 ), an upright support frame ( 4 ) of which the upper end is rotatably connected to the front end of the armrest frame ( 3 ), a seat frame ( 5 ) of which the front end is rotatably connected to the upright support frame ( 4 ), a front support frame ( 6 ) rotatably connected to the lower end of the upright support frame ( 4 ), and a rear support frame ( 7 ). The rear end of the seat frame ( 5 ) is connected rotatably to the rear support frame ( 7 ). One of the lower end of the backrest frame ( 2 ), the upper end of the front support frame ( 6 ) and the upper end of the rear support frame ( 7 ) is connected rotatably to the other two thereof.

TECHNICAL FIELD

The present invention relates to a foldable dining chair for children.

BACKGROUND TECHNOLOGY

In the prior art, a foldable dining chair for children includes a framebody which can be controlled in an open state and a folded state, and aseat mechanism disposed thereon. The described frame body is folded inback-and-forth direction and up-and-down direction thereof when it is inthe folded state. The current foldable dining chairs for childrencommonly can be classified into two kinds that one has a simplestructure while a larger size after being folded; and the other has asmaller size in its folded state, but has a more complex structuremaking folding process complicated.

SUMMARY OF THE INVENTION

The present invention is to provide a foldable dining chair forchildren, which has a simple structure, can be folded under an easymethod and has a smaller size after being folded.

The present invention provides a foldable dining chair for childrencomprising a frame body and a seat mechanism disposed thereon. The framebody is controlled in an open state and a folded state. The frame bodyis folded in back-and-forth direction and up-and-down direction thereofwhen being transferred into its folded state. The frame body comprises abackrest frame, an armrest frame of which the rear end is rotatablyconnected to the backrest frame, an upright support frame of which theupper end is rotatably connected to the front end of the armrest frame,a seat frame of which the front end is rotatably connected to theupright support frame, a front support frame rotatably connected to thelower end of the upright support frame, and a rear support frame. Therear end of the seat frame is connected rotatably to the rear supportframe. One of the lower end of the backrest frame, the upper end of thefront support frame and the upper end of the rear support frame isconnected rotatably to the other two thereof.

Preferably, the lower end of the backrest frame, the upper end of thefront support frame and the upper end of the rear support frame isrotatably connected by a same axis.

More specifically, the lower end of the backrest frame is rotatablyconnected to the upper end of the front support frame via a first shaft,and the upper end of the rear support frame is rotatably connected tothe upper end of the front support frame via a second shaft.

When the frame body is in its open state, the joint of the upper end ofthe front support frame and the upper end of the rear support frame isin front upward side of the joint of the rear end of the seat frame andthe rear support frame.

When the frame body is in its open state, both the joint of the lowerend of the backrest frame and the upper end of the front support frame,and the joint of the upper end of the rear support frame and the upperend of the front support frame are situated in rear upward side of thejoint of the lower end of the upright support frame and the frontsupport frame.

When the frame body is in its open state, the joint of the rear end ofthe armrest frame and the backrest frame is in upward side of joint ofthe lower end of the backrest frame and the upper end of the frontsupport frame.

Furthermore, a block is set in the upper end of the rear support frame,and when the frame body is in its open state, the block supports on thebackrest frame, to make the rear support frame be opened stably oppositeto the front support frame.

Preferably, an opening-and-locking mechanism is mounted on the framebody.

More specifically, the opening-and-locking mechanism is set between thebackrest frame and the front support frame.

When the frame body of the dining chair is in its open state, the jointof the upright support frame and the front end of the seat frame is inupward side of the joint of the lower end of the upright support frameand the front support frame.

The front end of the armrest frame is rotatably connected to the upperend of a connecting member, and the lower end of the connecting memberis rotatably connected to the upper end of the upright support frame.

Comparing to the prior technology, this invention has followingadvantages that:

Due to the frame body has fewer pole frames and forms a set of linkagemechanism thereof, accordingly, it has a simpler structure, is moreconvenient to fold and has a smaller size after being folded.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of the frame body in open state;

FIG. 2 is a schematic diagram of the frame body in open state;

FIG. 3 is a schematic diagram of the frame body in half-lap state;

FIG. 4 is a schematic diagram of the frame body in folded state;

FIG. 5 is a section view of the opening-and-locking mechanism;

Thereinto: 1. frame body; 2. backrest frame; 3. armrest frame; 4.upright support frame; 5. seat frame; 6. front support frame; 7. rearsupport frame; 8. unlocking operating part; 9. connecting member; 10.footrest frame; 11. block; 12. locking spring pin; 13. locking hole; 14.first shaft; 15. second shaft.

DETAILED DESCRIPTION OF THE INVENTION

As shown in FIGS. 1 and 4, the foldable dining chair for childrenaccording to the invention comprises a frame body 1 and a seat mechanismdisposed thereon. The frame body 1 is controlled to be in an open stateand a folded state. The frame body 1 is folded in back and forthdirection and up and down direction thereof when it 1 is in the foldedstate. The frame body 1 includes a backrest frame 2, an armrest frame 3of which the rear end is rotatably connected to the backrest frame 2, anupright support frame 4 of which the upper end is rotatably connected tothe front end of the armrest frame 3, a seat frame 5 of which the frontend is rotatably connected to the upright support frame 4, a frontsupport frame 6 rotatably connected to the lower end of the uprightsupport frame 4, and a rear support frame 7. The rear end of the seatframe 5 is connected rotatably to the rear support frame 7. One of thelower end of the backrest frame 2, the upper end of the front supportframe 6 and the upper end of the rear support frame 7 is connectedrotatably to the other two thereof.

There are varieties of connection modes among the lower end of thebackrest frame 2, the upper end of the front support frame 6 and theupper end of the rear support frame 7.

First: no drawing, the lower end of the backrest frame 2, the upper endof the front support frame 6 and the upper end of the rear support frame7 are connected rotatably in a same axis.

Second: as shown in each drawing, the lower end of the backrest frame 2is rotatably connected to the upper end of the front support frame 6 viathe first shaft 14, and the upper end of the rear support frame 7 isrotatably connected to the upper end of the front support frame 6 viathe second shaft 15.

Third: no drawing, the lower end of the backrest frame 2 is rotatablyconnected to the upper end of the rear support frame 7 via one rotationaxis, and the upper end of the front support frame 6 is rotatablyconnected to the upper end of the rear support frame 7 via the otherrotation axis.

Fourth: no drawing, the upper end of the rear support frame 7 isrotatably connected to the lower end of the backrest frame 2 via onerotation axis, and the upper end of the front support frame 6 isrotatably connected to the lower end of the backrest frame 2 via theother rotation axis.

This operation example adopts the second mode for connection of thelower end of the backrest frame 2, the upper end of the front supportframe 6 and the upper end of the rear support frame 7. A block 11 is setin the upper end of the rear support frame 7, and when the frame body 1is in an open state, the block 11 will support on the backrest frame 2,and this block 11 is used to make the rear support frame 7 stably openas opposed to the front support frame 6.

When the frame body 1 is in an open state, the rotating joint of theupper end of the front support frame 6 and the upper end of the rearsupport frame 7 is in front upward side of the rotating joint of therear end of the seat frame 5 and the rear support frame 7. When theframe body 1 is in an open state, the rotating joints of the lower endof the backrest frame 2 and the upper end of the front support frame 6,the upper end of the rear support frame 7 and the upper end of the frontsupport frame 6 both place in rear upward side of the rotating joint ofthe lower end of the upright support frame 4 and the front support frame6. When the frame body 1 is in an open state, the rotating joint of therear end of the armrest frame 3 and the backrest frame 2 is in theupward side of the rotating joint of the lower end of the backrest frame2 and the upper end of the front support frame 6. When the frame body 1is in an open state, the rotating joint of the upright support frame 4and the front end of the seat frame 5 is in the upward side of therotating joint of the lower end of the upright support frame 4 and thefront support frame 6.

An opening and locking mechanism is set on the frame body 1. Thisopening and locking mechanism may be set between the backrest frame 2and the armrest frame 3; between the backrest frame 2 and the rearsupport frame 7; between the upright support frame 4 and the seat frame5; between the upright support frame 4 and the front support frame 6;between the seat frame 5 and the rear support frame 7; and between thefront support frame 6 and the rear support frame 7. The opening andlocking mechanism set in this operation example is set between thebackrest frame 2 and the front support frame 6. There are also varietiesof opening and locking mechanism described, for example, a locking hookmay be rotatably set in the front support frame 6, and a locking grooveset in the backrest frame 2. When the frame body 1 is in an open state,the locking hook may hook on to the locking groove, and separate fromthis groove when the frame body is in a folded state; as shown inDrawing 5, the operation example adopts slidably setting a lockingspring pin 12 on the backrest frame 2, and a locking hole 13 in thefront support frame 6, when the frame body 1 is in an open state, thelocking spring pin 12 inserts into the locking hole 13, and when theframe body 1 is in an folded state, the locking spring pin 12 mayseparate from the locking hole 13.

The front end of the armrest frame 3 and the upper end of the uprightsupport frame 4 are rotatably set, and the front end of the armrestframe 3 may be rotatably connected to the upper end of the uprightsupport frame 4 via a third part, as shown in Drawing 1 and Drawing 4,the front end of the armrest frame 3 may rotatably connect to the upperend having a connecting member 9, and the lower end of the connectingmember 9 is rotatably connected to the upper end of the upright supportframe 4; the front end of the armrest frame 3 also may directly androtatably connect to the upper end of the upright support frame 4. Thefront end of the seat frame 5 may rotatably connect to the rear endhaving a footrest frame 10.

The upper end, lower end, front end and rear end for the invention areto be referred under the condition that the frame body 1 is in an openstate.

1. A foldable dining chair for children comprises, a frame body, saidframe body being controlled to be in an open state and a folded state,wherein the frame body is folded in back-and-forth direction andup-and-down direction thereof when being transferred into its foldedstate; and a seat mechanism disposed on the frame body; wherein theframe body comprises, a backrest frame including an upper end and alower end; an armrest frame including a rear end and a front end, therear end of which is rotatably connected to the backrest frame; anupright support frame including an upper end and a lower end, the upperend of which is rotatably connected to the front end of the armrestframe; a seat frame including a front end and a rear end, the front endof which is rotatably connected to the upright support frame; a frontsupport frame including an upper end and a lower end, rotatablyconnected to the lower end of the upright support frame (4); and a rearsupport frame including an upper end and a lower end, rotatablyconnected to the rear end of the seat frame, wherein one of the lowerend of the backrest frame, the upper end of the front support frame andthe upper end of the rear support frame is rotatably coupled to two ofthe lower end of the backrest frame, the upper end of the front supportframe and the upper end of the rear support frame.
 2. The foldabledining chair for children according to claim 1, wherein the lower end ofthe backrest frame is rotatably connected to the upper end of the frontframe via a first shaft and the upper end of the rear support frame isrotatably connected to the upper end of the front support frame via asecond shaft, the first shaft and the second shaft being spaced fromeach other.
 3. The foldable dining chair for children according to claim2, wherein when the frame body is in unfolded state, the joint where theupper end of the front support frame is rotatably connected to the upperend of the rear support frame is situated above the front of theposition in which the rear end of the seat frame is rotatably connectedto the rear support frame.
 4. The foldable dining chair for childrenaccording to claim 2, wherein when the frame body is in open state, theposition in which the lower end of the backrest frame is rotatablyconnected to the upper end of front support frame, and the position inwhich the upper end of the rear support frame is rotatably connected tothe upper end of the front support frame are both placed above the backof the point at which where the lower end of the upright support frameand the front support frame are rotatably connected.
 5. The foldabledining chair for children according to claim 2, wherein when the framebody is in open state, the place where the rear end of the armrest frameis rotatably connected to the backrest frame is above the place in whichthe lower end of the backrest frame is rotatably connected to the upperend of the front support frame.
 6. The foldable dining chair forchildren according to claim 2, wherein a block is placed on the rearsupport frame, being directly supported on the backrest frame when theframe body is in unfolded state, the block being used to steadily unfoldthe rear support frame away from the front support frame.
 7. Thefoldable dining chair for children according to claim 1, wherein anopening-and-locking mechanism is mounted on the frame body to enableopening of the foldable dining chair and locking of the foldable diningchair in an open state.
 8. The foldable dining chair for childrenaccording to claim 7, wherein an opening-and-locking mechanism operablycoupling the backrest frame and the front support frame.
 9. The foldabledining chair for children according to claim 1, wherein when the framebody is in open state, the place where the upright support frame isrotatably connected to the front end of the seat frame is above theplace where the lower end of the upright support frame is rotatablyconnected to the front support frame.
 10. The foldable dining chair forchildren according to claim 1, wherein the armrest frame has a front endwhich is rotatably connected to the upper end of the connecting members,and the upright support frame has a lower end which is rotatablyconnected to the lower end of the connecting members.